Y = 1, x = 1 hope this helps!
        
             
        
        
        
Answer:
distributive property
Step-by-step explanation:
(3x + 7) + (2x + 8)
each of the parenthesis has a multiplier of 1 , placed outside the parenthesis.
then multiplying the terms inside the parenthesis by 1 gives
3x + 7 + 2x + 8
 
        
             
        
        
        
Choice B would be the correct answer. I hope that helps! :D
        
             
        
        
        
There’s a calculator for that